The Humans were clearly active in the Vault you explored. They worked on a tool that proved useful in the Out - showing it to Marla and Gery might prove that there is more to the Out than they thought. Perhaps it will even convince them to come and help you?
- Talk to Gery and Marla
- Find Iam
- Use Iam's elevator to get off the Unstable Cliffs
- Visit the Tamba house
- Rewards:
2x
Peace Treaty
Peace Treaty Idea
- Rewards:
Previous Quest: 
The First Vault
Next Quest: The Research